dragspecialties.eu / partseurope.eu WINDSHIELDS & FAIRINGS SADDLEBAGS & LUGGAGE SEATS & SISSY BARS FUEL/AIR SYSTEMS EXHAUST TRANSMISSION, CLUTCH LINE & DRIVELINE ENGINE GASKETS & SEALS LIGHTING & LICENSE PLATES ELECTRICAL HANDLEBARS, CONTROLS & MIRRORS CABLES TANKS & OIL FILTERS BRAKES & BRAKE LINES DASHES & GAUGES FENDERS COVERS, LOCKS & GENERAL FRAMES & SUSPENSION FOOTRESTS & FLOORBOARDS WHEELS & AXLES SECTION 6 All part numbers in BLUE are new for the OldBook. See FATBOOK For Late Model Applications 323 DISCLAIMER: SEE PAGE 5 FOR IMPORTANT INFORMATION REGARDING CERTAIN WARRANTY AND EMISSION CONTROL REGULATION COMPLIANCE AND NOISE REGULATION INFORMATION. BIG AXLE™ POWERGLIDE™ TAPPET •Micro-finish bore allows a running fit of 0,0002” •Big Axle™ rollers are designed around three working parts •The outer wheel/roller has a 27% greater wall size – less harmonic distortion for better tracking of cam lobe •Pin bearings are decreased in size by 12%, which increases rpm for more precise tracking •Axle size is increased 36% and doubles as the inner race, so the pin bearing and complete roller assembly now rotate around the axle instead of an inner race, eliminating all possible movement in and around the axle POWERGLIDE™ TAPPETS •These tappets will run in cast iron or aluminum tappet blocks •Recommend fitting the tappets to the blocks with a clearance of 0,0007” to 0,0012” •Produced from billet bearing steel •A true center-line for roller life and exact cam timing POWERGLIDE™ STEADY ROLL TAPPET •The same Powerglide™ advantage (oil-fed axle, billet steel body, precision fit hydraulics), but now incorporates a Steady Roll bronze bushing in place of the needle bearing roller •These tappets have undergone extensive development to increase load, lubrication, hydraulic and life capacities •Billet body •Increased roller width •Roller perpendicularity held to 0,0002” •Hand-honed hydraulic unit cavity •Dynamic load capacities increased over 30% TAPPETS •Standard solid rollers are designed around three working parts •The outer wheel/roller has a 27% greater wall size – less harmonic distortion for better tracking of cam lobe •Pin bearings are decreased in size by 12%, which increases rpm for more precise tracking •Axle size is increased 36% and doubles as the inner race, so the pin bearing and complete roller assembly now rotates around the axle instead of an inner race, eliminating all possible movement in and around the axle •Sold each HYDROSOLID TAPPET •Performs like a hydraulic tappet up to 5500 rpm, then turn into a solid tappet •When it turns into a solid tappet, it adds approximately three to six more usable horsepower •Prevents hydraulic pump at high rpms •Sold each NOTE: Requires the use of adjustable pushrods. V-THUNDER™ RACE FORGED TAPPETS •Forged design is stronger than commonly available cast or billet designs •Race/slow bleed upgrade design for high-performance use •Each unit is 100% tested for proper function •Black oxide finish •Available individually or in a set of four V-THUNDER™ PERFORMANCE FORGED TAPPETS •Forged design is stronger than commonly available cast or billet designs •Performance replacement for the stock hydraulic roller lifter •Each unit is 100% tested for proper function •Black oxide finish •Available individually or in a set of four PART # SIZE DS-194107 For 84-99 80” Evolution Big Twin; repl. OEM# 18523-86 SIZE POWERGLIDE HYDRAULICS STANDARD HYDRAULIC STANDARD SOLID FOR 66-84 SHOVELHEAD; REPL. OEM #S 18498-48/18522-53A Std. (0,731”) DS-194271 DS-1943691 DS-1942722 +0,002” DS-194367 DS-1943701 - +0,005” DS-194275 DS-1943711 - 1 Hydraulic lifter not included. 2 Adjuster screws and nut sold separately. PART # DESCRIPTION 0929-0043 For 84-99 Evolution Big Twin; standard PART # SIZE FOR 57-85 XL; REPL. OEM #18509-52B DS-194276 Std. (0,730”) DS-194277 +0,005” PART # DESCRIPTION DS-194342 For 84-99 Evolution Big Twin (0,8425” OD); repl. OEM #18523-86 PART # DESCRIPTION FOR 84-99 EVOLUTION BIG TWIN 0929-0078 Race forged tappet (ea.) 0929-0079 Race forged tappets (set of 4) PART # DESCRIPTION FOR 84-99 EVOLUTION BIG TWIN 0929-0076 Performance forged tappet (ea.) 0929-0077 Performance forged tappets (set of 4) •Std. (0,8425”) size •Sold each •State of the art pushrod seat, machined with the same segmented parabolic cup as the JIMS roller rockers •Hand fit hydraulic unit to a running fit of 0,0002”, with ultra-precision air-gauging system •Lubrication capacities for hydraulic unit and valve train (top end) increased 10% •Lubrication capacities for the roller, cams and cam bearings have increased 100% for increased cooling •Sold each DS-194272 DS-194271 DS-194369
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